Repair-patch.



' patches for use in repairing pots, pans and UNITED srArrs PATENT FFIQE.

THOMASYWHILDE, 0F BELLINGI-IAM, WASHINGTON.

REPAIR-PATCH.

No Drawing.

inghani, in the county of. Vhatcoin and.

State of lVashington, have invented certain new and useful Improvements "in Repair- Patches, of which the following is a specification.

My invention relates to improvements in repair patches and particularly to repair kitchen ware of a like character; and an object of my invention is to provide a repair patch of the character described which will be comparatively cheap in manufacture and efficient in use.

In preparing my newrepair patch, the following ingredients are used: tin foil; gum shellac thoroughly dissolvedin alcohol; and pure rubber, thoroughly dissolved in bi sulfid of carbon. The repair patch is prepared as follows: To one side of the sheet of tin foil, apply a thin coat of the shellac solution and let the latter dry, after which apply another coat of the same. second" coat has dried, apply a thin coat of the'rubber solution, and after the latter has dried apply a second coat of the same. The second coat of rubber solution having thoroughly dried, another coat of the shellac solution is applied and allowed to dry.

In using my new repair patch, the metal immediately surrounding the hole tobe repaired is cleaned and freed from rust and foreign substances. A piece of my new re pair patch is then taken of sufficient. size to cover the hole and is held over a lamp, gas jet or other source of dry heat, about a minute or until the adhesive substances combine and set which will be within a minute.

\Vhile the repair patch is still warm, it is the metal.

pressed tightly to the metal with tlce finger, the shellac face being placed in contact with The patch is smoothed down carefully and heat is again applied so that the patch is brought to a temperature almost as high as the melting point of the metal sheet. At this temperature the shellac and rubber are transformed into a hard crust which holds the metal firmly to the article mended and which is insoluble in water and is unaffected by the heat to which the utensil is subjected in its ordinary use. The metal sheet protects the crust and the patch will be found to resist efiiciently boiling liquids, fruit acids, grease, water and all liquids used After this Specification of Letters Patent. Patented Sept, 6, 1916, Application filed October 21, 1909. Serial No. 523,807.

- in cooking. The patch formed by my new composition will further be found to adhere closely to the surface and to be free from the bulkiness or roughness found in solder repairing. Further, the patch will prove to be light and flexible-and will resist displacementby sudden expansion or contraction of the article mended, in which it has an advantage over bulky pieces of cement which are made for the same vpurpose and which are liable to be thrown off or contraction.

The coating onthe metal sheet is-in no sense a flux and there is no flux used in connection with my new patch. Indeed, the

part about the hole to be mended must be thorougl'ily cleaned so that anything which would act as a flux is entirely removed.

My new patch can be used for mending articles on which soldercannot be used, such as crockery, iron pots and articles made of by such expansion aluminum. The patch can be stuck on by even the most unskilled domestic and is always ready for use.

I claim:'

1. A repair patch of the class described consisting of a metal base upon'which are laid coats of a gum and of rubber.

2. A repair patch of the class described consisting of tin foil coated with a gum and with rubber.

3. A repair patch of the'class described consisting of a base of metalcoated with layers ofa gum with which alternate layers of rubber.

4. A repair patch of the class described consisting of tin foil upon which are laid. alternate layers of a gum and of rubber superimposed on one another. v

5. A repair patch of the class described consisting of tin foil coated with gum shel lac; the latter being covered with a coat of rubber.

6. A repair patch of the class described consisting of tin foil coated with gum shel; lac between successive layers of which is'interposed an intermediate layer of rubber.

In testimony whereof I have hereunto set I THOMAS WHILDE.

Witnesses:

-ALFRED D. BLACK, J12,

E. D. KENYON. 

